ANDENNE (BE)
Quarry blast3 January 2019
- Magnitude
- 1.8ML
- Depth
- –
- Belgian time
- 14:15:342019-01-03
- UTC
- 13:15:342019-01-03
Main parameters
| Date and time | 2019-01-03 13:15:34 UTC 2019-01-03 14:15:34 Belgian time |
|---|---|
| Magnitude | ML 1.8 |
| Epicentral coordinates | 50.465° N, 5.029° E Uncertainty ± 2.6 km |
| Event ID | ROB 7550 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-01-03 14:43:52 Belgian time
Location map
- Epicentre
- Station that recorded the event
Arrival times at the stations
Each station first records the P wave, the fastest, then the S wave. The farther a station is from the epicentre, the later the waves reach it and the wider the gap between the two.
- Stations
- 12
- Epicentral distance
- 9.8 – 120.0km
- Mean velocity, P wave
- 5.8km/s
- Mean velocity, S wave
- 3.4km/s
- P wave
- S wave
- Curve fitted to the measurements
Notes and method
Curves: travel time of a direct wave in a homogeneous medium. The velocity of each wave and an origin-time shift, common to both, are fitted to the measurements by least squares. Depth not determined: hypocenter placed at the surface for the calculation. P wave: 10 measurements, root-mean-square deviation 0.31 s. S wave: 5 measurements, root-mean-square deviation 0.21 s.
Station measurements
P- and S-wave arrivals and ground displacement measured at each station. Click a column heading to change the order.
| km | ° | UTC | UTC | s | |
|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)12 stations | |||||
| GESGesves | 9.8 | 155 | 13:15:35.60+1.43 s | – | – |
| CLAClavier | 20.1 | 105 | 13:15:37.39+3.22 s | – | – |
| MRDMaredsous | 25.9 | 226 | 13:15:37.92+3.75 s | 13:15:41.85+7.68 s | 3.93 |
| RCHRochefort | 37.2 | 158 | 13:15:40.61+6.44 s | – | – |
| LCHLa Chartreuse | 44.8 | 64 | – | 13:15:47.62+13.45 s | – |
| DOUDourbes | 51.5 | 217 | – | 13:15:49.21+15.04 s | – |
| UCCBUccle | 60.0 | 308 | 13:15:44.43+10.26 s | – | – |
| MEMHMembach | 71.4 | 77 | 13:15:46.01+11.84 s | – | – |
| MRGMont Rigi | 74.4 | 86 | 13:15:47.11+12.94 s | – | – |
| KLBKalborn | 87.0 | 117 | 13:15:49.57+15.40 s | 13:15:59.61+25.44 s | 10.04 |
| LESLessines | 88.3 | 289 | 13:15:49.35+15.18 s | 13:15:59.91+25.74 s | 10.56 |
| WLFWalferdange | 120.0 | 138 | 13:15:54.36+20.19 s | – | – |